更多"(A number of) endangered (species) "的相关试题:
[单项选择]Endangered Species
Endangered species are plants and animals that are in immediate danger of extinction. Extinction is actually a normal process in the course of evolution. Since the formation of the earth, many more species have become extinct than those exist today. These species slowly disappeared because of change of climate and their failure to adapt to such conditions as competition and predation. Since the 1600s, however, the process of extinction has greatly accelerated as a result of both human population growth and technological encroachment on natural ecology systems. Today the majority of the world’s environments are changing faster than the ability of most species to adapt to such changes through natural selection.
Species become extinct or endangered for number of reasons, but the primary cause is the destruction of natural habitats. Drainage of wetlands, cutting and clearing of forests, growth of cities, and highway and dam construction have seriously reduced avail
A. Human beings are not aware of the importance of preserving endangered species.
B. Some endangered species have already reached the end of their life span in evolution.
C. The development of human society has greatly affected natural ecology systems.
D. The world’s climate has changed greatly that most species cannot survive.
[单项选择]When is an endangered species not an endangered species When it lives in the sea, apparently. Despite continuing carnage in the ocean, marine creatures were refused any protection at the United Nations conference on trade in wildlife that ended yesterday in Doha, Qatar.
Tigers, rhinos and elephants are all better protected after the meeting of the Convention on International Trade in Endangered Species (Cites). But hammerhead sharks, bluefin tuna and other marine species should be quaking in their skins. For when it comes to fish, the world has decided that scientific evidence of imminent demise is not reason enough to defend them against overexploitation. The conflict between trade and conservation is nothing new, but it is pretty well established that if you let trade in wildlife run rampant (蔓延的), soon there will be nothing left to sell. That is why the UN set up Cites in the first place.
So why did fish get such a raw deal Is it that we care less about life that is so
A. slaughter
B. protection
C. attention
D. neglect
[简答题]Reading 1 "Exotic and Endangered Species"
→ When you hear someone bubbling enthusiastically about an exotic species, you can safely bet the speaker isn’t an ecologist. This is a name for a resident of an established community that was deliberately or accidentally moved from its home range and became established elsewhere. Unlike most imports, which can’t take hold outside their home range, an exotic species permanently insinuates itself into a new community.
Sometimes the additions are harmless and even have beneficial effects. More often, they make native species endangered species, which by definition are extremely vulnerable to extinction. Of all species on the rare or endangered lists or that recently became extinct, close to 70 percent owe their precarious existence or demise to displacement by exotic species. Two examples are included here to illustrate the problem.
During the 1800s, British settlers in Austr
[单项选择]Reading 1 "Exotic and Endangered Species"
→ When you hear someone bubbling enthusiastically about an exotic species, you can safely bet the speaker isn’t an ecologist. This is a name for a resident of an established community that was deliberately or accidentally moved from its home range and became established elsewhere. Unlike most imports, which can’t take hold outside their home range, an exotic species permanently insinuates itself into a new community.
Sometimes the additions are harmless and even have beneficial effects. More often, they make native species endangered species, which by definition are extremely vulnerable to extinction. Of all species on the rare or endangered lists or that recently became extinct, close to 70 percent owe their precarious existence or demise to displacement by exotic species. Two examples are included here to illustrate the problem.
During the 1800s, British settlers in Australia j
A. Exotic species should be protected by ecologists.
B. Importing an exotic species can solve many problems.
C. Ecologists should make the decision to import an exotic species.
D. Exotic species are often disruptive to the ecology.
